Daikin FTXF20-25B Manuals

Manuals and User Guides for Daikin FTXF20-25B. We have 1 Daikin FTXF20-25B manual available for free PDF download: Service Manual

Daikin FTXF20-25B Service Manual (208 pages)

Brand: Daikin | Category: Air Conditioner | Size: 50 MB

Table of Contents
5
Safety Precautions
7
Meaning of Warnings and Symbols
7
Dangers
8
Warnings
8
Cautions
14
Notices
14
Troubleshooting
15
To Display the Error Code on the User Interface
15
To Reset the Error Code Via Remote Controller
15
To Reset the Error Code Via Outdoor Unit
15
To Perform a Test Run
15
To Perform a Test Run in Winter Season
16
Error Based Troubleshooting
16
A1-00 - PCB Abnormality
16
A5-00 - Outdoor Unit: High Pressure Peak Cut / Freeze Protection Problem
17
A6-00 - Indoor Unit Fan Motor Abnormality
18
C4-00 - Heat Exchanger Temperature Sensor Problem
18
C9-00 - Room Thermistor Abnormality
19
E1-00 - Outdoor Unit: PCB Defect
19
E3-00 - Outdoor Unit: Actuation of High Pressure Switch
20
E5-00 - Outdoor Unit: Overheat of Inverter Compressor Motor
21
E6-00 - Outdoor Unit: Compressor Startup Defect
22
E7-00 - Outdoor Unit: Malfunction of Outdoor Unit Fan Motor
23
E8-00 - Outdoor Unit: Power Input Overvoltage
23
Outdoor Unit: Cool/Heat Switchover Problem
24
F3-00 - Outdoor Unit: Malfunction of Discharge Pipe Temperature
25
F6-00 - Outdoor Unit: Abnormal High Pressure in Cooling
26
F8-00 - System Shutdown Due to Compressor Internal Temperature Abnormality
27
H0-00 - Outdoor Unit: Voltage/Current Sensor Problem
27
H3-00 - Outdoor Unit: Malfunction of High Pressure Switch
28
H6-00 - Outdoor Unit: Malfunction of Position Detection Sensor
29
H8-00 - Outdoor Unit: Malfunction of Compressor Input System
30
H9-00 - Outdoor Unit: Malfunction of Outdoor Air Thermistor
30
J3-00 - Outdoor Unit: Malfunction of Discharge Pipe Thermistor
31
J6-00 - Outdoor Unit: Malfunction of Heat Exchanger Thermistor
31
L3-00 - Outdoor Unit: Electrical Box Temperature Rise Problem
31
L4-00 - Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise
32
L5-00 - Outdoor Unit: Inverter Instantaneous Overcurrent
33
P4-00 - Outdoor Unit: Malfunction of Radiating Fin Temperature Sensor
34
U0-00 - Outdoor Unit: Shortage of Refrigerant
34
U2-00 - Outdoor Unit: Defect of Power Supply Voltage
35
U4-00 - Indoor/Outdoor Unit Communication Problem
36
Indoor Unit, Outdoor Unit Mismatching Problem
37
Symptom Based Troubleshooting
39
Operation Does Not Start
39
Operation Sometimes Stops
39
Operation Starts but the Unit Does Not Cool/Heat
40
Operating Noise and Vibrations
41
Abnormal High Pressure
42
Abnormal Low Pressure
43
Indoor Fan Starts Operating but the Compressor Does Not Operate
44
Operation Starts and the Unit Stops Immediately
45
Operation Stops, Unit Cannot Start for a While
45
Unit Discharges White Mist
46
Swing Flap Does Not Operate
46
Components
47
4-Way Valve
47
Checking Procedures
47
Repair Procedures
51
Compressor
54
Checking Procedures
54
Repair Procedures
59
Compressor Thermal Protector
64
Checking Procedures
64
Repair Procedures
66
Expansion Valve
68
Checking Procedures
68
Repair Procedures
72
High Pressure Switch
77
Checking Procedures
77
Repair Procedures
79
Indoor Unit Fan Motor
81
Checking Procedures
81
Repair Procedures
82
Indoor Unit Main PCB
84
Checking Procedures
84
Repair Procedures
86
Main PCB
89
Class 20~42 Units
89
Class 50~71 Units
106
Outdoor Unit Fan Motor
114
Class 20~42 Units
114
Class 50~71 Units
119
Plate Work
124
Outdoor Unit
124
Indoor Unit
130
Reactor
135
Checking Procedures
135
Repair Procedures
137
Swing Flap Motor
138
Checking Procedures
138
Repair Procedures
139
Thermistors
140
Refrigerant Side Thermistors
140
Other Thermistors
147
Wifi Control PCB
149
Checking Procedures
149
Repair Procedures
150
Third Party Components
153
Electrical Circuit
153
Checking Procedures
153
Repair Procedures
154
Refrigerant Circuit
155
Checking Procedures
155
Repair Procedures
159
External Factors
163
Checking Procedures
163
Maintenance
165
To Clean the Outdoor Unit Heat Exchanger
165
To Clean the Indoor Unit Heat Exchanger
165
To Clean the Indoor Unit Heat Exchanger in Extreme Condition
166
To Clean the Air Filters
166
Technical Data
168
Detailed Information Setting Mode
168
Detailed Information Setting Mode: Indoor Unit
168
Detailed Information Setting Mode: Outdoor Unit
168
Detailed Information Setting Mode: Remote Controller
168
Wiring Diagram
169
Wiring Diagram: Indoor Unit
169
Wiring Diagram: Outdoor Unit
175
Piping Diagram
185
Piping Diagram: Indoor Unit
185
Piping Diagram: Outdoor Unit
191
Component Overview
199
Component Overview: Indoor Unit
199
Component Overview: Outdoor Unit
200
Field Information Report
201
Service Tools
204
Field Settings
205
Field Settings: Indoor Unit
205
Field Settings: Outdoor Unit
206

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Daikin FTXF20-25B Service Manual (208 pages)

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